org.apache.flink.streaming.runtime.operators.windowing

类 EvictingWindowOperator<K,IN,OUT,W extends Window>

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperator<OUT>

org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator<OUT,InternalWindowFunction<ACC,OUT,K,W>>

org.apache.flink.streaming.runtime.operators.windowing.WindowOperator<K,IN,Iterable<IN>,OUT,W>

org.apache.flink.streaming.runtime.operators.windowing.EvictingWindowOperator<K,IN,OUT,W>

类型参数:

K - The type of key returned by the KeySelector.

IN - The type of the incoming elements.

OUT - The type of elements emitted by the InternalWindowFunction.

W - The type of Window that the WindowAssigner assigns.

所有已实现的接口:

Serializable, org.apache.flink.runtime.state.CheckpointListener, KeyContext, OneInputStreamOperator<IN,OUT>, OutputTypeConfigurable<OUT>, SetupableStreamOperator<OUT>, StreamOperator<OUT>, Triggerable<K,W>, org.apache.flink.util.Disposable

@Internal
public class EvictingWindowOperator<K,IN,OUT,W extends Window>
extends WindowOperator<K,IN,Iterable<IN>,OUT,W>

A WindowOperator that also allows an Evictor to be used.

The Evictor is used to remove elements from a pane before/after the evaluation of InternalWindowFunction and after the window evaluation gets triggered by a Trigger.

另请参阅:

序列化表格

嵌套类概要

从类继承的嵌套类/接口 org.apache.flink.streaming.runtime.operators.windowing.WindowOperator

WindowOperator.AbstractPerWindowStateStore, WindowOperator.Context, WindowOperator.MergingWindowStateStore, WindowOperator.PerWindowStateStore, WindowOperator.Timer<K,W extends Window>, WindowOperator.WindowContext

从类继承的嵌套类/接口 org.apache.flink.streaming.api.operators.AbstractStreamOperator

AbstractStreamOperator.CountingOutput<OUT>

字段概要

从类继承的字段 org.apache.flink.streaming.runtime.operators.windowing.WindowOperator

allowedLateness, internalTimerService, keySerializer, lateDataOutputTag, numLateRecordsDropped, processContext, timestampedCollector, triggerContext, windowAssigner, windowAssignerContext, windowSerializer

从类继承的字段 org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator

userFunction

从类继承的字段 org.apache.flink.streaming.api.operators.AbstractStreamOperator

chainingStrategy, config, latencyStats, LOG, metrics, output, timeServiceManager

构造器概要

构造器

构造器和说明

EvictingWindowOperator(WindowAssigner<? super IN,W> windowAssigner, org.apache.flink.api.common.typeutils.TypeSerializer<W> windowSerializer, org.apache.flink.api.java.functions.KeySelector<IN,K> keySelector, org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.api.common.state.StateDescriptor<? extends org.apache.flink.api.common.state.ListState<StreamRecord<IN>>,?> windowStateDescriptor, InternalWindowFunction<Iterable<IN>,OUT,K,W> windowFunction, Trigger<? super IN,? super W> trigger, Evictor<? super IN,? super W> evictor, long allowedLateness, org.apache.flink.util.OutputTag<IN> lateDataOutputTag)

方法概要

限定符和类型	方法和说明
void	close() This method is called after all records have been added to the operators via the methods OneInputStreamOperator.processElement(StreamRecord), or TwoInputStreamOperator.processElement1(StreamRecord) and TwoInputStreamOperator.processElement2(StreamRecord).
void	dispose() This method is called at the very end of the operator's life, both in the case of a successful completion of the operation, and in the case of a failure and canceling.
Evictor<? super IN,? super W>	getEvictor()
org.apache.flink.api.common.state.StateDescriptor<? extends org.apache.flink.api.common.state.AppendingState<IN,Iterable<IN>>,?>	getStateDescriptor()
void	onEventTime(InternalTimer<K,W> timer) Invoked when an event-time timer fires.
void	onProcessingTime(InternalTimer<K,W> timer) Invoked when a processing-time timer fires.
void	open() This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.
void	processElement(StreamRecord<IN> element) Processes one element that arrived at this operator.

从类继承的方法 org.apache.flink.streaming.runtime.operators.windowing.WindowOperator

deleteCleanupTimer, getKeySelector, getMergingWindowSet, getTrigger, getWindowAssigner, isCleanupTime, isElementLate, isWindowLate, registerCleanupTimer, sideOutput

从类继承的方法 org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator

getUserFunction, getUserFunctionParameters, initializeState, notifyCheckpointComplete, setOutputType, setup, snapshotState

从类继承的方法 org.apache.flink.streaming.api.operators.AbstractStreamOperator

getChainingStrategy, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getUserCodeClassloader, initializeState, numEventTimeTimers, numProcessingTimeTimers, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processWatermark, processWatermark1, processWatermark2, reportOrForwardLatencyMarker, setChainingStrategy, setCurrentKey, setKeyContextElement1, setKeyContextElement2, snapshotState

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 org.apache.flink.streaming.api.operators.OneInputStreamOperator

processLatencyMarker, processWatermark

从接口继承的方法 org.apache.flink.streaming.api.operators.StreamOperator

getChainingStrategy, getMetricGroup, getOperatorID, initializeState, prepareSnapshotPreBarrier, setChainingStrategy, setKeyContextElement1, setKeyContextElement2, snapshotState

从接口继承的方法 org.apache.flink.runtime.state.CheckpointListener

notifyCheckpointComplete

从接口继承的方法 org.apache.flink.streaming.api.operators.KeyContext

getCurrentKey, setCurrentKey

构造器详细资料

EvictingWindowOperator

public EvictingWindowOperator(WindowAssigner<? super IN,W> windowAssigner,
                              org.apache.flink.api.common.typeutils.TypeSerializer<W> windowSerializer,
                              org.apache.flink.api.java.functions.KeySelector<IN,K> keySelector,
                              org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer,
                              org.apache.flink.api.common.state.StateDescriptor<? extends org.apache.flink.api.common.state.ListState<StreamRecord<IN>>,?> windowStateDescriptor,
                              InternalWindowFunction<Iterable<IN>,OUT,K,W> windowFunction,
                              Trigger<? super IN,? super W> trigger,
                              Evictor<? super IN,? super W> evictor,
                              long allowedLateness,
                              org.apache.flink.util.OutputTag<IN> lateDataOutputTag)

方法详细资料

processElement

public void processElement(StreamRecord<IN> element)
                    throws Exception

从接口复制的说明: OneInputStreamOperator

Processes one element that arrived at this operator. This method is guaranteed to not be called concurrently with other methods of the operator.

指定者:

processElement 在接口中 OneInputStreamOperator<IN,OUT>

覆盖:

processElement 在类中 WindowOperator<K,IN,Iterable<IN>,OUT,W extends Window>

抛出:

Exception

onEventTime

public void onEventTime(InternalTimer<K,W> timer)
                 throws Exception

从接口复制的说明: Triggerable

Invoked when an event-time timer fires.

指定者:

onEventTime 在接口中 Triggerable<K,W extends Window>

覆盖:

onEventTime 在类中 WindowOperator<K,IN,Iterable<IN>,OUT,W extends Window>

抛出:

Exception

onProcessingTime

public void onProcessingTime(InternalTimer<K,W> timer)
                      throws Exception

从接口复制的说明: Triggerable

Invoked when a processing-time timer fires.

指定者:

onProcessingTime 在接口中 Triggerable<K,W extends Window>

覆盖:

onProcessingTime 在类中 WindowOperator<K,IN,Iterable<IN>,OUT,W extends Window>

抛出:

Exception

open

public void open()
          throws Exception

从类复制的说明: AbstractStreamOperator

This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.

The default implementation does nothing.

指定者:

open 在接口中 StreamOperator<OUT>

覆盖:

open 在类中 WindowOperator<K,IN,Iterable<IN>,OUT,W extends Window>

抛出:

Exception - An exception in this method causes the operator to fail.

close

public void close()
           throws Exception

从类复制的说明: AbstractStreamOperator

This method is called after all records have been added to the operators via the methods OneInputStreamOperator.processElement(StreamRecord), or TwoInputStreamOperator.processElement1(StreamRecord) and TwoInputStreamOperator.processElement2(StreamRecord).

The method is expected to flush all remaining buffered data. Exceptions during this flushing of buffered should be propagated, in order to cause the operation to be recognized asa failed, because the last data items are not processed properly.

指定者:

close 在接口中 StreamOperator<OUT>

覆盖:

close 在类中 WindowOperator<K,IN,Iterable<IN>,OUT,W extends Window>

抛出:

Exception - An exception in this method causes the operator to fail.

dispose

public void dispose()
             throws Exception

从类复制的说明: AbstractStreamOperator

This method is called at the very end of the operator's life, both in the case of a successful completion of the operation, and in the case of a failure and canceling.

This method is expected to make a thorough effort to release all resources that the operator has acquired.

指定者:

dispose 在接口中 StreamOperator<OUT>

指定者:

dispose 在接口中 org.apache.flink.util.Disposable

覆盖:

dispose 在类中 WindowOperator<K,IN,Iterable<IN>,OUT,W extends Window>

抛出:

Exception

getEvictor

@VisibleForTesting
public Evictor<? super IN,? super W> getEvictor()

getStateDescriptor

@VisibleForTesting
public org.apache.flink.api.common.state.StateDescriptor<? extends org.apache.flink.api.common.state.AppendingState<IN,Iterable<IN>>,?> getStateDescriptor()

覆盖:

getStateDescriptor 在类中 WindowOperator<K,IN,Iterable<IN>,OUT,W extends Window>